- #1
abhijitlohiya
- 14
- 0
if gravitation is present, will there be a capillary rise of liquid in vaccume?
rewebster said:didn't Einstein write a paper on this?
Capillary rise in vacuum refers to the phenomenon where liquid is pulled upwards in a narrow tube or capillary due to the forces of surface tension and adhesion, even in the absence of external pressure or gravity.
Capillary rise in vacuum occurs due to the cohesive forces between molecules in a liquid, which creates surface tension, and the adhesive forces between the liquid and the walls of the tube, which pulls the liquid upwards.
The height of capillary rise in vacuum is influenced by the diameter of the tube, the surface tension and density of the liquid, and the angle of contact between the liquid and the walls of the tube.
Yes, capillary rise in vacuum is different from capillary rise in air because in vacuum, there is no external pressure or gravity to counteract the forces of surface tension and adhesion, resulting in a higher capillary rise.
Capillary rise in vacuum has various applications in areas such as microfluidics, nanotechnology, and materials science. It can be used to transport and manipulate small amounts of liquid in confined spaces, as well as to measure surface tension and contact angles of liquids.